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If length = L and width = W then
area A = L*W and perimeter P = 2(L+W).
So, from the area equation, L = A/W
Substituting this in the equation for P gives P=2(A/W + W) = 2A/W + 2W
Then multiplying through by W gives PW = 2A + 2W2
or, in standrad form, 2W2 - PW + 2A = 0
Then W = 1/4*[P +/- sqrt(P2 - 16A)]
The two solutions of this quadratic will be W and L.
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How do you determine length if given the perimeter and width?
multiply the width by 2 and then subtract that to the perimeter then divide the answer by 2 to get the length
How can you calculate the length of a rectangle if the perimeter and the width are given?
Because the perimeter is lenght + length +width +width, you do perimeter - double the width, and then halve the remaining number. that should give you the length.
How do you find the length of a rectangle if the perimeter is 40 and the width is 2inches?
perimeter = 2 x (length + width) ⇒ length + width = perimeter ÷ 2 ⇒ length = (perimeter ÷ 2) - width So to find the length of the given rectangle, subtract the width from half the perimeter is how to do it. IF you meant "What is the length..." then: length = perimeter ÷ 2 - width = 40 ÷ 2 - 2 in = 20 - 2 in = 18 in
What is the width if the perimeter and length are given?
The width would be: P - (L*2) = W*2 Perimeter = P Length = L Width = W
How do you find the length and width of rectangle when given the perimeter but not the width or length?
by appying 2l+2w
How do you determine length if given the perimeter and width?
multiply the width by 2 and then subtract that to the perimeter then divide the answer by 2 to get the length
How do you determine width if the length and perimeter is given?
Subtract two times the length from the perimeter and cut that answer in half.
How can you calculate the length of a rectangle if the perimeter and the width are given?
Because the perimeter is lenght + length +width +width, you do perimeter - double the width, and then halve the remaining number. that should give you the length.
How do you find the length of a rectangle if the perimeter is 40 and the width is 2inches?
perimeter = 2 x (length + width) ⇒ length + width = perimeter ÷ 2 ⇒ length = (perimeter ÷ 2) - width So to find the length of the given rectangle, subtract the width from half the perimeter is how to do it. IF you meant "What is the length..." then: length = perimeter ÷ 2 - width = 40 ÷ 2 - 2 in = 20 - 2 in = 18 in
What is the formula to find the length of a rectangle when the perimeter and width is already given?
Length = (Perimeter - twice width) / 2
How do you find area when given perimeter and width?
If you are given the width and the perimeter, then figure out what the length is then calculate the area... hope this helps :)
What is the width if the perimeter and length are given?
The width would be: P - (L*2) = W*2 Perimeter = P Length = L Width = W
How do you find the length and width of rectangle when given the perimeter but not the width or length?
by appying 2l+2w
What is the width and length when the perimeter is 17.6?
All we can tell from the information you have given is that the length plus the width is 8.8...
How do you find the perimeter of a rectangle given the length and width?
Perimeter = 2*(L + W).
What is the length and width of a triangular prism if perimeter is 24 Cm?
Given the available information, the length and width are indeterminate.
How can you get the width when you have the perimeter and the length?
If the shape is a rectangle, then Perimeter = 2(Length + Width) So Width = Perimeter/2 - Length
